Legal Metrology System—Past, Present, Future

Through the chapter Legal Metrology System—Past, Present, Future, a significant legal metrology role is presented in human civilization development, which has led to measurement consistencies in everyday life. In addition to this, the current state of legal metrology at the international level is described, focusing on the European level. Furthermore, the European Union legislation is presented, including the New Approach Directives. Through this chapter, the need for launching measuring devices into the legal metrology framework is presented. Also, a legal metrology role and its key future impact indicators are described.